title: Marginal structural models for comparing alternative treatment strategies in ophthalmology using observational data.
authors.forename: Marshall M
authors.initials: MM
authors.lastname: Joffe
authors.forename: Maxwell
authors.initials: M
authors.lastname: Pistilli
authors.forename: John H
authors.initials: JH
authors.lastname: Kempen
mesh_terms: D003661:Decision Support Techniques; D005128:Eye Diseases / Q000628:therapy*; D006801:Humans; D008961:Models, Structural; D009885:Ophthalmology / Q000379:methods*; D010043:Outcome and Process Assessment, Health Care